Director Michel Gondry is down at South By Southwest right now promoting his documentary "The Thorn in His Heart," which offers a highly personal look at his family. MTV's Josh Horowitz snagged a few minutes to chat with him, and he asked if Gondry would like to follow up "The Green Hornet" with something similarly epic in its scale.

"I'd like to do a movie of this size with my own story, which would be quite amazing. But we'll see," he said. "I'm developing a screenplay with a writer right now about kids who travel [into] the future by mistake and a machine [that] keeps people younger... ehhh, it's complicated to explain."

Gondry has long been working on an adaptation of Rudy Rucker's 1984 sci-fi novel "The Master of Space and Time." He told The Playlist this past weekend that the project is finished, but he's working on something "similar."

He also said that he'll be collaborating with "Ghost World" graphic novelist Daniel Clowes on said similar project, but he gave Josh a different name for his collaborator -- Keith Bunin, who's written for HBO's series "In Treatment," is what it sounds like -- on the above-mentioned time travel flick. He also knows who his star will be.

"Ellen Page is supposed to be the main character," Gondry said. "She'd play Nancy... a young woman who participates in the discovery and changes the world." What's interesting here is Nancy happens to be one of the key characters' names in "Master of Space and Time." Which could just be one leap too many.